Harrow



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(No Model.)

Patented May 6, 1890.

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H. H. FRAZIER.

' HARROW.

Pzfigl May ,6, 1890.

UNITE STATES HARMON H. FRAZIER, OF ALLIANCE, NEBRASKA.

HARROW.

SPECIFICATION forming part of Letters Patent No. 427,412, dated May 6,1890.

Application filed May 17, 1889. Serial No. 311,108. (No model.)

To aZZ whom it may concern;

Be it known that I, HARMON H. FRAZIER, a citizen of the United States,residing at Alliance, in the county of Box Butte and State of Nebraska,have invented a new and useful Harrow, of which the following is aspecificatiou.

This inventionrelates to thatclass of harrows which comprise a series oftransverse parallel toothed bars mounted pivotally between twolongitudinal bars or frame-pieces; and it has for its object to providea device'ot' this class which shall possess superior acb-antages inpoint of simplicity, durability, and general efficiency, in which thebarrow-bars may be adjusted in such a manner as to place the teeth atdifferent angles or degrees of inclination, and in which severalsections composing the harrow may be conveniently coupled together ordisconnected, as occasion may require.

With these ends in View the invention consists in the improvedconstruction and arrangement of parts, which will be hereinafter fullydescribed, and particularly pointed out in the claims.

In the drawings, Figure 1 is a perspective View of a harrow equippedwith my improvements. Fig. 2 is a side view of the same. Fig. 3 is aside View showing the barrow-bars in a differentposition. Fig. 4 is aperspective View on an enlarged scale of one of the caps used at theends of the harrow-bars. Fig. 5 is avertical transverse sectional viewtaken on the line 00 so in Fig. 2. Fig. 6 is a detail View of one of thelongitudinal side bars of the harrow. Fig. 7 is a detail viewillustrating a modification.

The same letters refer to the same parts in all the figures.

A A designate the transverse bars ofmy improved harrow, which areprovided with teeth B, of ordinary construct-ion, extending verticallythrough the said bars. The latter are provided at their ends with capsO,constructed, preferably, of cast-iron, and fitting closely upon theouter ends of said barrow-bars, upon which they may be secured by meansof the outer teeth 13, which pass through perforations E in the upperand lower sides of said caps. The latter are provided on' their outerThe latter washers K may be interposed between the said pins or keys andthe bars G. I The caps C are provided at the corners of their upperouter edges with laterally-extending studs L and M, the former of which,being located at the front corners of said caps, are somewhat wider thanthe studs M, which are located at their rear corners, the relativeposition of said studs being such that when the studs L are in contactwith the upper edges of the longitudinal bars G the teeth 13 extendingthrough the harrow-bars shall be in a vertical position, while when thebarrow-bars are tilted so as to bring the studs M in contact with theupper edges of said bars the harrow-teeth shall assume acorrespondinglyinclined position. The studs L M are provided withnotches N in their under sides, to receive the upper edges of thelongitudinal bars G. It will be seen that, owing to this constructionand arrangement of parts, when draft is applied to the front end of theharrow, the resistance of the teeth to the ground will cause the notchesL at the front corners of the caps C to engage the upper edges of thelongitudinal bars G, thereby maintaining the harrow-teeth in a verticalposition and causing them to enter deeply into the soil. hen draft isapplied to the opposite end of the harrow, the position will bereversed, and the studs M will engage the longitudinal bars G, causingthe barrow-teeth to assume an inclined position and to drag lightly overthe soil. The perforations in the longitudinal bars G are placed nearerthe upper than the. lower edges of said bars, as will be plainly seen inFig. 6 of the drawings. By removing the said side bars and reversingthem, the sides of said bars which are then brought uppermost will fitclosely in the notches N of the studs L M, and the harrow-bars will thusbe held securely in a somewhat inclined position without being able tovibrate. When the harrow-bars are in this position and draft is appliedto the front end, the harrow-tecth will act in the same manner ascultivatorteeth, being forwardly inclined, when they will cut deeplyinto the soil, while when draft applied to the opposite end the teethwill be rearwardly inclined and will drag lightly over the soil.-

It will be seen from the foregoing that by my improved construction theharrow-teeth may be permitted to assume four different positions,suitable for various kinds of work.

In Fig. 7 of the drawings Ihave illustrated a modification of myinvention, whereby the transverse harrow-bars A may be flexiblyconnected. The said modification consists in substituting for thelongitudinal side bars G short side pieces G to which the harrow-barsare connected pivotally in the same manner as before, and which areprovided at their front ends with perforations P,havingradially-extending slots Q, and at their rear ends withlaterally-extending studs R, provided with flanges S, adapted toregister with the slots Q of the perforations P of the next adjoiningshort bars G when placed at right angles to each other. \Vhen the shortbars G have been thus connected and are allowedto as? sume a horizontalposition, the flanges S upon .the studs R will prevent the parts frombeing disconnected, and will serve to couple or connect the harrow-barsflexibly in a safe and convenient manner.

From the foregoing description, taken in connection with the drawingshereto annexed, the operation and advantages of my invention will bereadily understood.

The construction is exceedingly simple and durable, and admits of theteeth being adjusted to any desired position for operation in a veryrapid and convenient manner.

When desired, two or more barrow-sections, each constructed as hereindescribed, may be connected by a single draft-bar for operation by meansof links L as shown in Fig. 1 of the drawings.

Having thus described my invention, I claim 1. In a harrow, thecombination of the transverse toothed bars, the caps mounted upon theends of said bars and having laterallyextending pintles, the studs atthe front and rear upper corners of said bars, said studs being ofunequal Width, and the longitudinal frame-bars,to which the harrow-barsare pivotally connected by means of the pintles extending laterally fromthe caps at the ends thereof, substantially as set forth.

2. The combination, with the transverse toothed harrow-bars, of the capshaving the notched studs at their upper front and rear corners, saidstuds being of unequal size, and thelongitudinal frame-bars composed offlexibly connected sections, to which the harrowbars are pivotallyconnected by the pintles extending laterally from the caps at the endsof said harrow-bars, substantially as set forth.

The combination of the transverse toothed harrow-bars, the caps providedwith laterallyextending pintles and studs, and the longitudinal sidebars, consisting of sections, each provided at one end with aperforation having a radially-extending slot and at the opposite endwith a laterally-extending stud having a short flange on one side,substantially as herein set forth.

a. The transverse toothed harroW-bars provided at their ends with capshaving laterally-extending pintles and studs,in combination with thelongitudinal side bars having perforations to receive said pintles, saidperforations being nearer the upper than the lower edges of saidlongitudinal bars, substantially as set forth.

5. The combination, with the transverse toothed harrow-bars having thecaps provided with laterally-extending pintles and studs, of thereversible connecting-bars having perforations in which the saidharroW-bars are pivotally mounted by the pintles extending laterallyfrom the caps at the ends of said harrow-bars, said perforations beingnearer the upper than the lower edges of said reversibleconnecting-bars, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I have hereto aftixedmy signature in presence of'two witnesses.

HARMON H. FRAZIER.

\Vitnesses:

J. S. PARADIS, C. E. CROSIER.

